From: Jakub Wilk <jwilk@jwilk.net>
Date: Fri, 11 Sep 2020 11:44:46 +0000 (+0200)
Subject: bswap.3: Use strtoull() for parsing 64-bit numbers
X-Git-Tag: man-pages-5.09~372
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=581c3ea730feb635f0670a372c4eedae22e555c8;p=thirdparty%2Fman-pages.git

bswap.3: Use strtoull() for parsing 64-bit numbers

Before, on 32-bit systems:

    $ ./a.out 0x0123456789abcdef
    0xffffffff ==> 0xffffffff00000000

After:

    $ ./a.out 0x0123456789abcdef
    0x123456789abcdef ==> 0xefcdab8967452301

Signed-off-by: Jakub Wilk <jwilk@jwilk.net>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
---

diff --git a/man3/bswap.3 b/man3/bswap.3
index 412e1702f5..ce847580aa 100644
--- a/man3/bswap.3
+++ b/man3/bswap.3
@@ -72,7 +72,7 @@ main(int argc, char *argv[])
         exit(EXIT_FAILURE);
     }
 
-    x = strtoul(argv[1], NULL, 0);
+    x = strtoull(argv[1], NULL, 0);
     printf("0x%" PRIx64 " ==> 0x%" PRIx64 "\en", x, bswap_64(x));
 
     exit(EXIT_SUCCESS);